Manufacturing method for organic EL element, organic EL transfer member, and member to be transferred

Abstract

The main object of the present invention is to provide a method for easily producing a high quality organic EL element by the transfer at a relatively low temperature, an organic EL transfer member and a member to be transferred used therefore. In order to achieve the above-described object, in the present inventions a method; using a transfer member having at least a supporting member and a light emitting layer formed peelably on the supporting member and a member to be transferred having at least a base member and an electrode formed on the base member; comprising a process of superimposing the light emitting layer side of the transfer member and the electrode side of the member to be transferred, and partially transferring at least the light emitting layer from the transfer member onto the member to be transferred; wherein a bonding property improving substance is included in at least one of the layer of the transfer member in contact with the member to be transferred or the layer of the member to be transferred in contact with the transfer member is provided.

1 - 7 . (canceled)  
     
     
         8 . A transfer member having at least a supporting member and a light emitting layer formed peelably on the supporting member, wherein a bonding property improving substance is included in a layer of the transfer member to be contacted with a member to be transferred, 
 the layer including the bonding property improving substance is a layer other than the light emitting layer, and    a molecular weight of the bonding property improving substance is in a range of 1,000 to 100,000.    
     
     
         9 . A transfer member having at least a supporting member and a light emitting layer formed peelably on the supporting member, wherein a bonding property improving substance is included in a layer of the transfer member to be contacted with a member to be transferred, 
 the layer including the bonding property improving substance is a layer other than the light emitting layer, and    a glass transition temperature of the bonding property improving substance is lower than the glass transition temperature of the light emitting layer.    
     
     
         10 . The transfer member according to  claim 9 , wherein the molecular weight of the bonding property improving substance is in a range of 1,000 to 100,000.  
     
     
         11 . The transfer member according to  claim 8 , wherein the layer including the bonding property improving substance is a hole transporting layer or an electron transporting layer.  
     
     
         12 . The transfer member according to  claim 9 , wherein the layer including the bonding property improving substance is a hole transporting layer or an electron transporting layer.  
     
     
         13 . The transfer member according to  claim 10 , wherein the layer including the bonding property improving substance is a hole transporting layer or an electron transporting layer.  
     
     
         14 . A member to be transferred having at least a base member and an electrode formed on the base member, wherein a bonding property improving substance is included in the layer of the member to be transferred to be contacted with a transfer member, 
 the layer including the bonding properly improving substance is a layer other than the light emitting layer, and a molecular weight of the bonding property improving substance is in a range of 1,000 to 100,000.    
     
     
         15 . A member to be transferred having at least a base member and an electrode formed on the base member, wherein a bonding property improving substance is included in the layer of the member to be transferred to be contacted with a transfer member, 
 the layer including the bonding property improving substance is a layer other than the light emitting layer, and    a glass transition temperature of the bonding property improving substance is lower than the glass transition temperature of the light emitting layer.    
     
     
         16 . The member to be transferred according to  claim 15 , wherein the molecular weight of the bonding property improving substance is in a range of 1,000 to 100,000.  
     
     
         17 . The member to be transferred according to  claim 14 , wherein the layer including the bonding property improving sustenance is a hole transporting layer or an electron transporting layer.  
     
     
         18 . The member to be transferred according to  claim 15 , wherein the layer including the bonding property improving substance is a hole transporting layer or an electron transporting layer.  
     
     
         19 . The member to be transferred according to  claim 16 , wherein the layer including the bonding property improving substance is a hole transporting layer or an electron transporting layer.  
     
     
         20 . An organic EL element having a least a base member, a first electrode formed on the base member, an electron transporting layer and a light emitting layer formed on the first electrode and a second electrode formed on the electron transporting layer and the light emitting layer, 
 wherein a bonding property improving substance is included in the electron transporting layer.    
     
     
         21 . An organic EL element having at least a base member, a first electrode formed on the base member, a hole transporting layer and a light emitting layer formed on the first electrode and a second electrode formed on the first electrode and a second electrode formed on the hole transporting layer and the light emitting layer, 
 wherein a bonding property improving substance is included in the hole transporting layer.